Apparatus for refining heavy mineral oils



Jum 28, 1932. JODECK v 1,864,911

APPARATUS FOR REFINING HEAVY MINERAL OILS Filed June 15. 1929 Fatented June 28, 1932 UNITED STATES PATENT OFFICE BEsoHR'Iin K, J1? NE'W YORK, N. Y., ASSIGNOR TO EDELEANU GESELLSCHAFT M.

p OF BERLIN, GERMANY, A CORPORATION OF GERMANY APZPARATUS FOR REFIN'ING HEAVY MINERAL OILS Application filed June 15, 1929, Serial No. 371,177, and in Germany July 2, 1928.

The invention relates to an apparatus intended for refining heavy mineral oils by means of liquid sulphur dioxide,and includes a' special mixing device into which the heavy mineral oil is introduced in a continuous current and intimately mixed therein with the liquid sulphur dioxide which is likewise fed in a continuous manner. From the mixer the mixture is discharged into a settling tank in wherein the separation of the refined oil and the extract takes place.

The invention has particular reference to the design of this settling tank in which a satisfactory separation of the refined oil and the m extract is obtained, even though the dimensions of the tank are comparatively small.

To this end the invention primarily consists in using as a settling tank a horizontal drum-like receptacle into which the mixture xv. is fed axially at one end, while at the other end upper and lower col ecting chambers are provided. The former collects the refined oil, while the latter collects and discharges the extract from the apparatus.

'5" In order to further accelerate the separa tion of the refined oil from the extract, which is already favored by the motion of the mixture in the horizontal tank, inclined lengtlr wise compartments may be arranged in the tank by means of inclined partitions. "With this arrangement the separation of the refined oil from the extract takes place within the individual compartments more readily, because, owing to the inclined battles the oil particles which rise and the extract particles that sink do not interfere with each other and so tend to separate more quickly.

In order that the invention may be more easily comprehended, an embodiment of the same is illustrated by way of example in the accompanying drawing.

Fig. 1 is an axial vertical section through the mixer and settling tank; and

Fig. 2 is a section on line II-II, Fig. 1.

" As may be seen in Fig. 1, the apparatus possesses a mixer 5, of any suitable design, 1)

to which the heavy mineral oil is fed in a continuous current at 6, while the liquid sulphur dioxide is continuously supplied at 7, 5n the mixture produced by a suitable agitator 8, leaving the mixer through an axial bottom outlet and arriving horizontally at one end of a drum-like tank 9, the longitudinal axis of which extends horizontally. On the op posite end tank 9 has a domelike top extension 10, and a lower extension 11. Delivery pipes are connected to these discharge ports.

As illustrated in Fig. 2, inclined partitions 12 may be provided in the tank 9, by which the interior of tank 9 may be subdivided into inclined lengthwise compartments.

The apparatus described operates as follows:

The mixture leaving mixer 5 in a continuous current, enters tank 9 in an'axial direction. Due to a decrease in the linear velocity of mixture and the difference between their gravities the separation of the extract particles and oil particles takes place, the former slowly sinking while the latter rise, so that extract and refined oil can be drawn ofi' continuously from respectively, discharge port 11 and dome 10.

If inclined partitions are provided, as illustrated in Fig. 2, separation of refined oil and extract takes place separately and more easily within the individual inclined compartments 13. The inclination tends to favor the separation, since the rising oil particles are not interfered with by the descending extract particles. The particles pass along one another, as indicated by the arrows, Fig. 2.

I claim as my invention Tn apparatus for refining heavy mineral oils with liquid $0., a settling chamber comprising a horizontal tank adapted to contain li uid under pressure; an inlet for the oil- S 2 mixture at one end; a plurality of spaced partitions, inclined from the horizontal and extending through the tank parallel with the flow, having a. space between their lateral edges and the tank wall; a collecting dome for oil on top of the tank at the end opposite the inlet: and a collecting dome for S0 extract on the bottom of the tank at the end oposite the inlet. In testimony whereof I aflix my signature.

PAUL J ODECK. 

